U501-C Pulse sensor

U501-C Pulse sensor

This incremental shaft encoder has been designed for heavy-duty application,especially for use in petroleum & diesel dispensing environments where potentially explosive atmospheres can be expected. It features a rugged and compact construction as well as a wide selection of mechanical and electronic variations.

Materials:

Housing: Die cast aluminum alloy

Bearings: Self-lubricating sintered bronze

Features :

A high advantage in reliability and adaptability.

A large selection of shaft couplings, including couplings with built-in backlash clutch facility.

Standard sealing screws.

The fuel resistant cable can be customized regarding length.

Suit the TATSUNO meter and other meters whose pulse per circle is 60 or 100.

100% EX approved and tested.

Specifications:

Power supply: 5 VDC, fixed or variable

Current Consumption: Standard 10 to 30 mA, max 90mA

Number of Channels: 2

Number of pulses: 50 ppr

Output Signal: Square wave duty cycle 50%+10%.

Phase Shift: 2 channels 90° (25% +5%)

Output Stage: NPN

Output Current: Max. 30mA

Hysteresis: Min. 0.2°

Output freq. Min. 1000Hz

Temperature range: Working -40 to 70degree

RPM: Max 3000RPM

Mounting: With 3 pcs. M4 screws

Weight: Approx. 340 gram. Excl. the cable

Wiring:

Color Channel plug

Green +5V 2

Black CH1 3

Yellow 0V 4

Blue CH2 5

Red +5V 6

--- --- 1

Package:

Cross Weight Dimension

150g/case of 1 130x100x15mm/case of 1

Approval:

The shaft encoder has been tested and granted Ex and EMC approval.The Ex-approval is EX d IIA T3.Ex certificate number is CE991209.

Ordering Specifications:

Product ID Product name

U501-C pulse sensor

Important:

The products should be used in compliance with applicable country, province and local Laws and regulations. Products selection should be based on physical Specifications and limitations and compatibility with the environmentand materials to be handled. HONGYANG makes no warranty of fitness for a particular use. All illustrations and Specifications in this literature are based on the latest products information lable at the time of publication,HONGYANG reserves the right to make changes at any time in price, materials. Specifications and models and to discontinue models without notice or obligation.

used to keep a certain position to refuel. Working principal Pressured oil flow into the chambers in where main and vice valve located after sw fuel dispenser itching main valve and flow out of spout because vice valve is opened. Liquid flowage reduces the static pressure and the pressure in upper chamber of switch. The pressure on the chambers of upper and low switch membrane are equivalent due to the front of spout communicating atmosphere. When inlet vent is flooded by oil, the lower chamber of switch membrane still keeps atmospheric pressure. Thus, pressure difference is generated between the upper and lower chambers of switch membrane, the membrane and auto-shut level moving upward, auto controlled level moves downward under the function of switch handle. Finally, steel ball is driven into the hole of auto controlled level; switch handle continues to move downward; main valve is closed. fuel dispenser In order to form the auto-shut function, two oil passages with different sections should be set (See Diagram 2-32). Here the Bernoulli equation as followed in order to explain the principle of auto-shut: �? = 12 ρv12+ρgh1=�?+12ρv22+ρgh2 (2--6) Among the above formula: ρ── oil density �?── pressure in main valve passage v1 ── velocity of flow in main valve passage h1── height of main valve �?── pressure in vice valve v2── velocity of flow in vice valve passage h2── height of vice valve Diagram 2-32: Auto-shut nozzle Due to small nozzle body, it could be regarded as a horizontal pipe, that is h1= h2 From Formula 2-6: �?－ｐ2�?2ρ(v22－v12) (2-7) According the following Formula: v1v2=A2 A1 In the Formula: A1 ── section of main valve passage A2 ── section of vice valve passage The Formula can be converted into: �?－ｐ2�?2ρv22 [1�?A2A1)] It is known from Formula 2-8 that if A2 / A1 is certain value, P2 becomes a negative value when velocity of flow increasing a certain extent, that is, P2 smaller than at fuel dispenser

01H for Common Data in a device　　 DB_Ad　　 Byte 1 Byte 2 fuel dispenser Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8　　 00H 00H-FFH 00H-FFH 00H-FFH 00H-FFH 00H-FFH 00H-FFH 00H-FFH　　 Communica Application Application Application Application Application Application Application　　 tion service dependent dependent dependent dependent dependent dependent dependent　　 01H　　 Common　　 Data　　 02H-FFH　　 Application　　 dependent　　3.2.4 Application Data Data　　 The Application Data consist of the Data Identifier Data_Id the Data Length　　 Data_Lg and the Data Element Data_El. All this data is specified in Application　　 Docum fuel dispenser ent of each forecourt device (see IFSF document Part III).　　3.3 Application Message Type　　3.3.1 Read - Message　　The general format for a READ message is given in the table below: Examples are given in　　Chapter 5.2.1.　　 Message Field Field Type Value Description　　 bin8 1 to 255　　 LNAR S　　 Logical Node Address Recipient　　 bin8 1 to 127　　 N　　 bin8 1 to 255　　 LNAO S　　 Logical Node Address Originator　　 bin8 1 to 127　　 N　　 bin8 0　　 IFSF_MC　　 Message Code　　 fuel dispenser

ed, with worldwide trading and long-dated futures going out five to seven years. As oil production slows, prices will rise up and down the future fuel dispenser s curve, stimulating new technology and conservation. We might be running low on $20 oil, but for $60 we have adequate oil supplies for decades to come.�? The other worry of pessimists is that alternatives to oil simply cannot be brought online fast enough to compensate for oil s imminent decline. If the peak were a cliff or if it arrived soon, this would certainly be true, since alternative fuels have only a tiny global market share today (though they are quite big in markets, such as ethanol-mad Brazil, that have favourable policies). But if the peak were to come after 2020 or 2030, as the International Energy Agency and other mainstream forecasters predict, then the rising tide of alternative fuels will help transform it into fuel dispenser a plateau and ease the transition to life after oil. The best reason to think so comes from the radical transformation now taking place among big oil firms. The global oil industry, argues Chevron, is changing from “an exploration business to a manufacturing business�? To see what that means, consider the surprising outcome of another great motorcar race. In March, at the Sebring test track in Florida, a sleek Audi prototype R-10 became the first diesel-powered car to win an endurance race, pipping a field of petrol-powered rivals to the post. What makes this tale extraordinary is that the diesel used by the Audi was not made in the normal way, exclusively from petroleum. Instead, Shell blended conventional diesel with a super-clean and super-powerful new form of diesel made from natural gas (with the clunky name of gas-to-liquids, or GTL). Several big GTL projects are under way in Qatar, where the North gas field is perhaps twice the size of even Ghawar when measured in terms of the energy it contains. Nigeria and others are also pursuing GTL. Since the world has far more natural gas left than oil—much of it ou fuel dispenser